A13394 | Phoenix and Memory

Phoenix is trying to take a photo of his $n$ friends with labels $1, 2, \dots, n$ who are lined up in a row in a special order. But before he can take the photo, his friends get distracted by a duck and mess up their order.

Now, Phoenix must restore the order but he doesn't remember completely! He only remembers that the $i$ -th friend from the left had a label between $a_i$ and $b_i$ inclusive. Does there exist a unique way to order his friends based of his memory?

The first line contains one integer $n$ ( $1 \le n \le 2\cdot10^5$ ) — the number of friends.

The $i$ -th of the next $n$ lines contain two integers $a_i$ and $b_i$ ( $1 \le a_i \le b_i \le n$ ) — Phoenix's memory of the $i$ -th position from the left.

It is guaranteed that Phoenix's memory is valid so there is at least one valid ordering.

If Phoenix can reorder his friends in a unique order, print YES followed by $n$ integers — the $i$ -th integer should be the label of the $i$ -th friend from the left.

Otherwise, print NO. Then, print any two distinct valid orderings on the following two lines. If are multiple solutions, print any.